I bought a 56 gal column style drilled corner Flo tank off cl 2 weeks ago... came with a couple.pieces of live rock and sand. It has a wetdry sump filter. I added a reef octupus bh100 skimmer. Everything seems to be going well enough.. but I am still getting my feet wet so to speak. Today a coworker offers me a 90 gallon.. tank only for$50. Seems like a good deal... but what would I need to get a 90 up and running? I have a fluval canister..not sure if I could use that. I would need a top, lighting.... probably a better skimmer....